Home / 28,384.21-42,577.67-10,855.54

Finding the Fourth Proportional to 28,384.21, 42,577.67 and 10,855.54

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Solution

The fourth proportional to 28,384.21, 42,577.67 and 10,855.54 is: 16,283.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.21 : 42,577.67 = 10,855.54 : x
  2. Step 2: Convert to fraction form
    28,384.21/42,577.67 = 10,855.54/x
  3. Step 3: Cross multiply
    28,384.21x = 42,577.67 × 10,855.54
  4. Step 4: Simplify right side
    28,384.21x = 462,203,599.79
  5. Step 5: Solve for x
    x = 462,203,599.79/28,384.21
  6. Step 6: Final answer
    x = 16,283.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.